EP0578741A4 - Systeme microcellulaire pour telephones cellulaires numeriques. - Google Patents

Systeme microcellulaire pour telephones cellulaires numeriques.

Info

Publication number
EP0578741A4
EP0578741A4 EP19920909998 EP92909998A EP0578741A4 EP 0578741 A4 EP0578741 A4 EP 0578741A4 EP 19920909998 EP19920909998 EP 19920909998 EP 92909998 A EP92909998 A EP 92909998A EP 0578741 A4 EP0578741 A4 EP 0578741A4
Authority
EP
European Patent Office
Prior art keywords
multiple access
division multiple
frequencies
microcell
digital cellular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19920909998
Other languages
German (de)
English (en)
Other versions
EP0578741A1 (fr
Inventor
William Chien-Yeh Lee Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pactel Corp
Original Assignee
Pactel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pactel Corp filed Critical Pactel Corp
Publication of EP0578741A1 publication Critical patent/EP0578741A1/fr
Publication of EP0578741A4 publication Critical patent/EP0578741A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0491—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more sectors, i.e. sector diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Système téléphonique cellulaire du type dans lequel un ensemble de cellules contiguës, présentant chacune un ensemble différent attribué de canaux de fréquences de transmission, sont agencées avec un contrôleur de transfert (98) permettant de maintenir une communication continue avec des téléphones mobiles se déplaçant d'une cellule à l'autre. Le système permet d'effectuer plusieurs accès grâce à un dispositif (251) qui attribue à plus d'un téléphone mobile au moins l'une des fréquences de l'ensemble de fréquences attribué. On décrit trois modes d'exécution de systèmes à accès multiples. Dans un premier mode, on utilise un accès multiple par répartition en fréquence (Fig. 4). Dans un deuxième mode, on utilise un accès multiple par répartition temporelle (Fig. 4). Dans un troisième mode, on utilise un accès multiple par répartition de code (fig. 10).
EP19920909998 1991-04-02 1992-03-06 Systeme microcellulaire pour telephones cellulaires numeriques. Withdrawn EP0578741A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/679,521 US5243598A (en) 1991-04-02 1991-04-02 Microcell system in digital cellular
US679521 2003-10-06

Publications (2)

Publication Number Publication Date
EP0578741A1 EP0578741A1 (fr) 1994-01-19
EP0578741A4 true EP0578741A4 (fr) 1994-10-12

Family

ID=24727247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920909998 Withdrawn EP0578741A4 (fr) 1991-04-02 1992-03-06 Systeme microcellulaire pour telephones cellulaires numeriques.

Country Status (4)

Country Link
US (1) US5243598A (fr)
EP (1) EP0578741A4 (fr)
JP (1) JPH06506335A (fr)
WO (1) WO1992017954A1 (fr)

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JPH06506335A (ja) 1994-07-14
US5243598A (en) 1993-09-07
WO1992017954A1 (fr) 1992-10-15

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